bvoip has certified the new Snom M500 Dect Wireless System
Snom M500 - Partial Support
Snom M58 Cordless Deskset - Partial Support
Snom M55 Cordless Handset - Partial Support
These devices are marked as Partial Support which means:
Custom Templates Created Zero touch provisioning is enabled Firmware control is enabled Remote capability (reboot, reprovision, factory reset, remote UI) are available. High Availability Proxy Registration Support
You can find a full list of supported devices here.